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【JACS】深圳理工大学成会明/韩翠平教授课题组|锌–金属电池中锌晶面优先剥离与选择性钝化

  • 2026-04-07 22:40:51
【JACS】深圳理工大学成会明/韩翠平教授课题组|锌–金属电池中锌晶面优先剥离与选择性钝化

锌–金属电池中锌晶面优先

剥离与选择性钝化

深圳理工大学成会明/韩翠平教授课题组

近日,深圳理工大学成会明/韩翠平教授课题组在国际顶尖学术期刊JACS发表题为“Preferential Stripping and Selective Passivation of Zinc Crystal Facets in Zinc–Metal Batteries”的研究论文。其中,深圳理工大学Liu dong-jie博士和中科院深圳先进院Gan he博士共同为论文第一作者,深圳理工大学成会明院士和韩翠平助理教授共同为文章通讯作者。

文章亮点

#总结#

开发稳定的锌(Zn)负极对于水系锌–金属电池的应用至关重要。然而,控制后续镀层的锌负极剥离过程仍然了解不足。这个初始反应对于锌–金属电池的性能至关重要。

在这里,我们从晶体学的角度揭示了锌负极的优先生锌行为。初始剥离过程中锌晶面溶解顺序由其剥离能决定,顺序为 Zn(100) > Zn(101) > Zn(002)。其中,Zn(100)晶面首先溶解,导致锌剥离不均匀。

为减轻这种不均匀性,我们提出了一种选择性钝化策略,通过引入与 Zn(100)具有强相互作用但与 Zn(002)相互作用较弱的分子。这种方法有效地减缓了 Zn(100) 的溶解,促进了不同晶面上的均匀同步剥离。因此,改性 Zn 阳极表现出增强的循环性,在 Zn||Cu 非对称电池中实现了 99.9% 的库仑效率,并在 Zn||Zn 对称电池中实现了 2500 小时的循环寿命。

此外,Zn||I2 软包电池提供了约 330 mAh 的高容量,并在约 1200 个循环中保持稳定的性能。这项工作为在 Zn 金属阳极中实现均匀剥离提供了基础性见解和实用策略。

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  138. /yingpanguazai/ssd/ssd1/www/c.460.net.cn/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/c.460.net.cn/runtime/temp/a3df6b94aede6ebd0d2926ccdfcd20d5.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/c.460.net.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000705s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000905s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000371s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000365s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000515s ]
  6. SELECT * FROM `set` [ RunTime:0.000211s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000625s ]
  8. SELECT * FROM `article` WHERE `id` = 539874 LIMIT 1 [ RunTime:0.000441s ]
  9. UPDATE `article` SET `lasttime` = 1775746064 WHERE `id` = 539874 [ RunTime:0.035785s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.005683s ]
  11. SELECT * FROM `article` WHERE `id` < 539874 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.014296s ]
  12. SELECT * FROM `article` WHERE `id` > 539874 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001138s ]
  13. SELECT * FROM `article` WHERE `id` < 539874 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002105s ]
  14. SELECT * FROM `article` WHERE `id` < 539874 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007625s ]
  15. SELECT * FROM `article` WHERE `id` < 539874 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002245s ]
0.162349s